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2013-06-04, 6:41pm
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Junior Member
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Join Date: Apr 01, 2013
Location: Lake of the Ozarks, Missouri (Sunrise Beach)
Posts: 3
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National 8M tip suggestions for soft (104) glass
I originally set up my National 8M for boro. Currently using 7 orifice premix tip (I believe it's a HTC-0 7 hole silent burn -based on pictures from sundanceglass).
My question: has anyone done soft glass with this tip or should I get a surface mix tip - it appears most on this forum uses SM-7. Currently I'm on tank ox, but will be switching to concentrator in the near future.
From what I'm experiencing - the flame is very hot for 104, but I'm new to 104.
Thx for any info! Sandy
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2013-06-07, 9:19am
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Senior Member
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Join Date: Jul 18, 2007
Posts: 568
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I think a surface mix would be best. I like a premix for certain applications with gold/silver fume, but a surface mix is be the most versatile - hard to use a premix flame of any size without boiling/scumming.
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2013-06-16, 6:01am
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Junior Member
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Join Date: Apr 01, 2013
Location: Lake of the Ozarks, Missouri (Sunrise Beach)
Posts: 3
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thank you for confirming my suspicions - I have been able to get some nice beads created, but I have to be very VERY careful with the setting on the flame (almost 0 tollerence) so surface mix it is! Thank you!
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2013-06-16, 7:17am
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kinda torching....
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Join Date: Mar 26, 2013
Location: Pennsylvania
Posts: 301
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btw they make a premix tip that is for soft glass, its a propane/air tip (ambient air) it draws oxy from the surrounding air and I think is like a nicer hothead type flame
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2013-06-16, 7:20am
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Senior Member
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Join Date: Aug 02, 2007
Location: Nahant Ma
Posts: 1,901
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I use the sm-7 tip and get a nice flame. You can get a real nice pin point flame on this tip for smaller work. I am considering trying out the sm-21 but I would need a bigger concentrator.
Bob
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2013-06-16, 11:35am
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Senior Member
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Join Date: Aug 17, 2011
Posts: 274
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The sm 11 is like a soft glass dream. I loved it till I got my bravo. I will be selling my national with an sm5 and sm11 tip.
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